Manufactuer: SSL

SSL XLOGIC-ALPHA-CHANNEL

SSL XLogic Alpha Channel - Analogue Channel Strip

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    Product Code: 500020970


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    "All great sounding recordings have to start somewhere...With the classic combination of a mic preamp, filter, EQ and dynamics, the XLogic Alpha Channel brings SSL
    Physical *
    Depth 230mm / 9" casing only
    Height 44.5mm / 1.75" (1 RU)
    Width 438mm / 17.25" casing only
    482mm / 19" inc' rack ears
    Weight 3.0kg / 7 pounds
    Power Boxed size 320mm x 550mm x 80mm
    12.75" x 21.75" x 3.25"
    Boxed weight 3.5kg / 8 pounds

    * All values are approximate



    Environmental
    Temperature Operating: +5 to 30 deg. C
    Non-operating: -20 to 50 deg. C
    Max. gradient: 15 deg. C/hour
    Relative Operating: 20 to 80 %
    Humidity Non-operating: 5 to 90 %
    Max. wet bulb: 29 deg. C (non-condensing)
    Vibration Operating: Non-operating, power off: Shock Operating: Non-operating: Altitude Operating: 0 to 3000m (above sea level)
    Non-operating: 0 to 12000m



    Connections
    Power IEC320 3-pin connector, 100 - 240 Vac, 50 - 60 Hz
    Analogue I/O
    Microphone Balanced, 3-pin XLR-F, Zin = 1kO (10kO for Hi Z)
    Instrument Un-balanced, ¼" Mono Jack, Zin = 1MO
    Output Balanced, ¼" Stereo Jack, Zo = 40O
    Insert Send Balanced, ¼" Stereo Jack, Zo = 40O
    Insert Return Balanced, ¼" Stereo Jack, Zin = 10kO
    Link (2 of) RCA phono, limiter sidechain control voltage (dc.)
    Digital I/O
    SPDIF In RCA phono, 1V pk-pk, Zin = 75O, SPDIF format.
    The ADC will lock to this signal if present.
    SPDIF Out RCA phono, 1V pk-pk, Zo = 75O, SPDIF 24bit format.
    Synchronised to SPDIF In, else free-runs at 44.1kHz.



    Measured Performance
    Mic Gain To Output: 20dB min, 76 dB max
    Instrument Gain To Output: 26dB min, 82 dB max
    Pad Attenuation: 20 dB
    Input Impedance (O):
    Mic: 1K / 10K
    Instrument: 1 MEG
    Noise Figure
    Equivalent Ein:
    Mic, Zin = 10R -130.5 dBU
    Mic, Zin =150R -127.5 dBU
    Dynamic Range:
    Mic Gain Min: 105 dB unweighted
    Mic Gain Max: 76 dB unweighted
    Common Mode Rejection: 70 dB from 50Hz to 10KHz
    with 1Vp-p Common Mode
    Max Common Mode In: 5V p-p
    Frequency Response
    Mic To Out: +/- 0.2 dB from 10Hz to 70KHz
    -3dB (LF) : 6 Hz
    -3dB (HF) : 250 KHz
    Mic Amp Distortion - A Typical Specification
    Output Level THD Knob CCW THD Knob CW
    +5 dBU 0.03 % 0.1 %
    +10 dBU 0.05 % 0.3 %
    +15 dBU 0.06 % 0.5 %
    +20 dBU 0.09 % 2 %
    +24 dBU 0.15 % 5 %
    Maximum Analog Output: +24.3 dBU (10K)



    EQ
    LF Section:
    LF Shelf Gain Range: +/- 19 dB
    LF Bell Gain Range: +/- 15 dB
    Shelf Freq Range: 40 - 600 Hz
    Bell Freq Range: 35 - 500 Hz
    Bell Q: 1.4
    Mid Section:
    Gain Range: +/- 17 dB
    Freq Range: 300 - 5200 Hz
    Q Range: 0.7 - 1.9
    HF Section:
    Shelf Gain Range: +/- 19 dB
    Shelf Freq Range: 1.5KHz - 22 KHz
    EQ Dynamic Range: 100 dBU



    Limiter
    Limiter Threshold: - 3 dBFS
    Limiter Ratio: 6, over-easy
    Limiter Headroom: 12 dB min, 14 dB typ
    Attack Time: 50 uSec
    Release Time: 200 mSec
    Limiting Distortion: 0.5 % max
    Non-Limiting Distortion: 0.001 %

    Insert Point
    Operating Level
    Limiter Switch Out: 24 dBU, unity gain to output
    Limiter Switch In: 12 dBU, +12 dB gain to output
    Output Impedance (SEND): 150 O
    Input Impedance (RETURN): 10 KO



    ADC
    ADC Type: 24 bit, 192 KHz CS5361 ADC
    Sampling Rate: locks to user supplied SPDIF IN
    Range: 32 KHz to 108 KHz
    No SPDIF In: Defaults to 44.100 KHz
    SPDIF In: 200 mV p-p IN min
    5V p-p IN max
    SPDIF Out (Level): 1V p-p
    (Impedance): 60 O

    ADC Performance Measured From Insert Return:
    Dynamic Range, 20KHz measurement bandwidth
    Fs= 32K: 110.5 dB, A-wgt
    Fs= 48K: 110 dB, A-wgt
    Fs= 96K: 109 dB, A-wgt
    ADC Distortion, 1KHz test tone
    Level Distortion in 20K meas bw
    -0.5 dBFS 0.0006 %
    -10 dBFS 0.0015 %
    -20 dBFS 0.004 %
    -30 dBFS 0.013 %
    -40 dBFS 0.04 %
    ADC Freq Response
    Fs = 48 K: +/- 0.1 dB, 20Hz - 20KHz
    Fs = 96 K: +/- 0.1 dB, 20Hz - 40KHz

    Miscellaneous
    Phantom Power: 47.5V typical
    Output Gain Range: +/- 19.5 dB
    Key Features
  • Professional ultra clean mic preamp with line level & Hi Z instrument input switches
  • Variable Harmonic Drive' circuit; a Time Machine of distortion characteristics
  • High Pass Filter with selectable 40Hz, 80Hz or 120Hz cutoff frequency
  • Built in professional quality Analogue to Digital conversion - as standard
  • Auto sample rate sensing and self adjustment
  • Three band SSL parametric EQ with mid freq Q control and dual LF curves
  • Intelligent auto compression that maximises recording headroom and avoids DAC clipping
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